Battery jar



July 30, 1929. .1. H. WAGENHOkT BATTERY JAR Original Filed Oct. 51. 1921 Patented duly 30, 1929.

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JAIVIES H. WAGENHORST, OF JACKSON, MICHIGAN.

BATTERY JAB. I

I Original application filed Getober 31, 1921, Serial No. 511,853. Renewed May fw, 1926. Divided and this application filed. June 8, 1926'. Serial No. 114,522.

My invention relates to improvements in battery jars and the method of making the same and has to do, more particularly with the manufacture of rubber battery jars sucn as are customarily used in connection with storage batteries, My invention relates particularly to an improved construction by be constructed very simply and cheaply and" in which the handle is fastened securely to the wall of the battery jar without at all wealening such wall. A further object of my invention is to provide a construction in which i a handle is fastened to the wall of a battery jar by vulcanizin'g the rubber ofthe jar in place around projecting portions of said handle whereby the handle is securely fastened and reinforces the wall of the battery jar and the connection does not weaken the wall.

Further objects, and objects relating to details and economies of'construo'tion and operation will definitely appear from the detailed description to follow. In one instance, I accomplish the objects of my invention by the devices and means set forth in the following specification. My invention is clearly defined and pointed out 1n the appended cla1ms. A structure constituting a preferred embodiment of my invention is illustrated in the accompanying drawings, forming a part of this specification, in which:

Figure 1 is a perspective view of abattery jar embodying my lnvention, and

F1g. 2 1s a detail, sect1onal view through one end wall of the jar and the handle show-I ing the manner in which the handle is connected to the jar.

In the drawings, the same reference numerals refer to the same parts throughout the several views. p

In general, I accomplish the objects of my invention by providing a handle having a series of holes therethrough by pressing this handle against the rubber forming the wall of the battery jar, while that rubber is soft and before it has been vulcanized. This causes the soft rubber to penetrate the holes in'the handle and forms an interlock between such rubber of the battery jar wall and the handle. The battery jar isthen vul canized whichhardens this rubber and causes 1t to securely lock the handle in place. .l-propose to provide the holes in the plate forming; the handle with counter-sinks on the side facing away from the wall of the battery jar and the rubber which penetrates through the holes will flow over these counter-sinks. and thus make a better interlock between the handle and the battery jar.

In the drawings,1 have illustrated one embodiment of my invention comprising abattery jar'10 formedof rubber molded about] a mandrel and then vulcanized into the required form. The handles 11 are provided one on each end of the battery jar each handlecomprising a plate portion having in its upper end a slit1'2 forming a grip, by. means I of which a workman may grasp the handle and thus lift the battery ar. The plate portion of the handle 11 is provided with a series of holes 18 therethrough, each of which is 1 provided with a counter-sunk portion 14. on the side facing'away from the wall ofthe battery jar. After the battery jar has been formed, but before it has been vulcanized to harden the rubber, the plate 11 formingthe handle is pressed against the wall of the battery jar andthis causes the soft rubber to penetrate the holes 13 and to flow into the counter-sinks 14, as illustrated at 15 in Fig.

2. The battery jar is then vulcanized, which causes the rubber to set or harden and forms.

a very secure and strong interlock between the wall of-the battery jar and the handle. In this way, the handles are securely fastened in place in a very simple and economical manner but without weakening at allthe walls of the battery jar. I

I am'aware that my invention is susceptible of considerable variation without departing from the spirit thereof, and, therefore, I

The combination of a of vulcanized rub- V 5 her, a handle member therefor having 'a body portion applied to and lying against the side Wallof such jar and provided with a plurality of perforations hai ingoutwardly flaring Walls, the outer face of said body portion being exposed, and a plurality of integral rivetlike extensions formed of the; rubber of said jar and extruded through and filling said perforations to secure the handle to the jar.

JAMES WVAGENHORST. 

